Design of a natural laminar flow airfoil for a light aircraft

Srilatha, KR and Dwarakanath, GS and Ramamoorthy, P (1990) Design of a natural laminar flow airfoil for a light aircraft. Journal of Aircraft, 27. pp. 966-968.

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A new natural laminar flow (NLF) airfoil, the NALNLF-13; 208, has been designed for a light aircraft. It has been shown that the NAL-NLF-208 airfoil performs better than the Wortmann FX-60-177 airfoil because it is thicker and is estimated to give better aerodynamic performance larger L/ D) in the operating CL range. To take account of the difficulties in fabrication, the NALNLF-208 airfoil has been modified to incorporate appropriate bluntness at the trailing edge. A surface waviness (amplitude of 0.025070and wavelength of 4.1 %, each of the local chord) superimposed on the blunted airfoil is shown to have no significant 13; effect. It is concluded that the NAL-NLF-208 is robust with respect to performance and fabrication and could replace the Wortmann airfoil as a candidate for light aircraft after13; testing.

Item Type: Article
Additional Information: Copyright for this article belongs to AIAA
Uncontrolled Keywords: Design;Natural laminar flow;Airfoil;Light craft
Subjects: AERONAUTICS > Aeronautics (General)
Depositing User: M/S ICAST NAL
Date Deposited: 01 Mar 2010
Last Modified: 24 May 2010 04:21

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